Scope 3 Emissions Estimator
France

Scope 3 emissions reporting in France: Bilan Carbone methodology; Article L229-25 of the Code de l'environnement (mandatory GHG assessments); CSRD transposition via Ordonnance no. 2023-1142; Déclaration de Performance Extra-Financière (DPEF)

France was the first country in Europe to mandate corporate GHG reporting. Since 2012, Article L229-25 of the Code de l'environnement has required companies with 500 or more employees (250 in overseas territories), local authorities with 50,000 or more inhabitants, and public institutions with 250 or more employees to produce a Bilan des Émissions de Gaz à Effet de Serre (BEGES) covering Scope 1 and Scope 2, updated every four years (every three years for public entities). A 2022 amendment extended the BEGES requirement to include "significant" Scope 3 emissions, making France one of the few countries with a domestic Scope 3 mandate predating CSRD. The CSRD transposition via Ordonnance no. 2023-1142 and its implementing decree brings ESRS into French law, building on this existing foundation. French entities transitioning from BEGES and DPEF (Déclaration de Performance Extra-Financière) to ESRS reporting benefit from a decade of Bilan Carbone practice, but must significantly expand their Scope 3 measurement to cover all material GHG Protocol categories rather than the limited Scope 3 reporting that many BEGES filers produced.

Regulatory context: Autorité des Marchés Financiers (AMF); Haute Autorité de l'Audit (H2A) for assurance; Agence de l'Environnement et de la Maîtrise de l'Énergie (ADEME)

ADEME (Agence de la Transition Écologique, formerly Agence de l'Environnement et de la Maîtrise de l'Énergie) publishes the Base Carbone, France's official emission factor database containing over 3,000 emission factors for fuels, electricity, transport, materials, food, waste, and other categories. The Base Carbone is freely accessible at bilans-ges.ademe.fr and is updated regularly. ADEME also maintains the Bilan Carbone methodology, originally developed by Jean-Marc Jancovici, which provides a structured approach to organisational carbon footprinting that maps to GHG Protocol categories. The AMF supervises financial reporting for entities listed on Euronext Paris, and its enforcement activities now extend to sustainability reporting under CSRD. The H2A (Haute Autorité de l'Audit), created in 2023 to replace the H3C, supervises statutory auditors and will oversee the quality of sustainability assurance engagements. French entities participating in the EU ETS file annual verified emissions reports with the DREAL (Direction Régionale de l'Environnement, de l'Aménagement et du Logement) in their region.

Practical guidance for France

French entities should use ADEME's Base Carbone as the primary emission factor source for France-specific activities. For electricity, France's grid emission factor is approximately 0.052 kg CO2e per kWh (2023 location-based, per ADEME/RTE data), one of the lowest in Europe thanks to nuclear generation providing approximately 65% of French electricity. This low grid factor has significant implications for Scope 3 estimation. Categories involving electricity consumption in France (such as Category 11 for products used by French customers or Category 7 for electric vehicle commuting) produce much lower emission estimates than the same activities in Germany or the UK. For Category 1, ADEME's Base Carbone provides emission factors for French agricultural products, construction materials, manufactured goods, and services. The Bilan Carbone methodology includes detailed worksheets for each Scope 3 category that French practitioners are familiar with. For transport, ADEME publishes emission factors for French vehicle fleet averages, SNCF rail travel, and Air France flight data. The French Loi Climat et Résilience (2021) bans domestic flights where a rail alternative of under 2.5 hours exists, which may affect Category 6 (business travel) mode splits for French entities.

Audit expectations

French Commissaires aux Comptes (statutory auditors) and independent third-party verifiers (Organismes Tiers Indépendants, OTI) have performed sustainability assurance engagements under the French DPEF regime since 2017, giving France a deeper pool of sustainability assurance experience than most European countries. Under CSRD, sustainability assurance will be performed by statutory auditors or accredited assurance providers under H2A supervision, applying ISAE 3000 (Revised) for limited assurance. French assurance providers expect entities to demonstrate progression from BEGES-level Scope 3 (often limited to business travel and commuting) to full ESRS E1-6 compliance covering all material categories. The AMF's 2023 report on extra-financial reporting practices found that French listed companies' Scope 3 disclosures varied enormously in quality, with some reporting all 15 categories and others disclosing only one or two. The AMF expects convergence toward complete reporting as CSRD takes effect.

France-specific considerations

France's nuclear-dominated electricity grid gives French entities a structural advantage in lifecycle carbon intensity compared to entities in fossil-fuel-dependent countries. However, this advantage applies only to electricity consumed in France. For French multinationals with global supply chains, supplier-located emissions should use the grid emission factor of the country where the supplier operates, not the French factor. ADEME's Base Carbone includes emission factors for imported goods that account for the manufacturing country's energy mix. The French food and agriculture sector is economically significant (France is the EU's largest agricultural producer), and ADEME provides detailed emission factors for French agricultural products including livestock, dairy, wine, cereals, and fruit. For entities in the food value chain, these sector-specific factors are more accurate than generic European averages. France's TGV network provides low-carbon alternatives for domestic business travel (SNCF reports approximately 3.2 grams CO2 per passenger-km for TGV), making the rail emission factor material for Category 6 calculations. The French government's Plan Climat includes a target to reduce transport emissions by 28% by 2030 relative to 2015, supported by investments in rail, cycling infrastructure, and vehicle electrification that will affect future Scope 3 estimates.

Common inspection findings

The AMF's 2023 review of extra-financial reporting found that 55% of SBF 120 companies disclosed Scope 3, but only 30% provided a breakdown by GHG Protocol category. The remainder reported a single aggregate Scope 3 figure.

French OTI (Organismes Tiers Indépendants) performing DPEF verification reported that entities frequently cited ADEME Base Carbone factors without specifying the factor version or reference year, making it impossible to reproduce the calculation.

ADEME's review of BEGES filings found that 40% of entities required to update their BEGES every four years had not filed their most recent update, indicating widespread non-compliance with the domestic GHG reporting obligation.

AMF enforcement noted that some French multinationals reported Scope 3 using the French grid emission factor for all global operations rather than applying country-specific factors, which materially understated emissions for operations in coal-dependent countries.

H2A's initial review of sustainability assurance readiness found that some Commissaires aux Comptes lacked the technical expertise in GHG accounting needed to assess Scope 3 calculation methodologies, particularly for Category 15 (financed emissions) in the financial sector.